Question 1

Which of the following would be the correct order from lowest melting point to highest for the following substances?

Accepted Answer

A)   NaF 3H8 3CH2OH
B)   C3H8 3CH2OH
C)   C3H8 3CH2OH 
D)   CH3CH2OH 3H8 
E)   none of theseF) C) and E)
G) A) and B)

Question 2

What is the ratio of the length of the body diagonal of a cube to the face diagonal of the cube?

Accepted Answer

A)   0.817
B)   1.00
C)   1.22
D)   1.41
E)   1.73F) A) and B)
G) C) and E)

Question 3

Use the bond-type triangle for 
 
-Predict which compound has a high melting point and is a conductor in the molten and aqueous state.

Accepted Answer

A)   AlSb
B)   AlN
C)   AlLi
D)   AlP
E)   AlAsF) B) and C)
G) C) and E)

Question 4

Cesium iodide consists of a simple cubic lattice of l- ions with Cs+ ions in the center of the cubes. If the cell edge length is 0.445 nm, what is the Cs-I interatomic distance in nanometers?

Accepted Answer

A)   0.193 nm
B)   0.314 nm
C)   0.385 nm
D)   0.629 nm
E)   0.770 nmF) None of the above
G) A) and D)

Question 5

Which of the following types of solids represents the most ordered arrangement of repeating units?

Accepted Answer

A)   polycrystalline
B)   crystalline
C)   hydrophobic
D)   amorphous
E)   none of theseF) B) and C)
G) B) and D)

Question 6

Use the bond-type triangle for 
 4 B)  SnO2 C)  SnP D)  SnS E)  SnCl4" class="answers-bank-image d-inline" rel="preload" >
-Which of the following compounds will have the most metallic character?

Accepted Answer

A)   SnBr4
B)   SnO2
C)   SnP
D)   SnS
E)   SnCl4F) C) and D)
G) A) and B)

Question 7

What is the approximate density in g/cm3 of titanium metal if the atomic radius of a titanium atom is 0.145 nm and the atoms form a body-centered cubic unit cell?

Accepted Answer

A)   0.1 g/cm3
B)   1 g/cm3
C)   5 g/cm3
D)   25 g/cm3
E)   30 g/cm3F) A) and B)
G) A) and C) C

Question 8

A compound that is a poor conductor of electricity when solid, but a very good conductor when molten is most likely to fit into which category?

Accepted Answer

A)   molecular solid
B)   covalent solid
C)   ionic solid
D)   metallic solid
E)   any of the aboveF) B) and E)
G) None of the above C

Question 9

Which of the following types of solids is most likely to be soft, have a low melting point, and not conduct electricity when melted?

Accepted Answer

A)   ionic
B)   molecular
C)   network covalent
D)   metallic
E)   none of the aboveF) B) and D)
G) B) and E)

Question 10

Use the bond-type triangle for 
 2 C)  PCl3 D)  AlCl3 E)  SnCl4" class="answers-bank-image d-inline" rel="preload" >
-Which of the following compounds will have the most covalent character?

Accepted Answer

A)   NaCl
B)   SrCl2
C)   PCl3
D)   AlCl3
E)   SnCl4F) A) and E)
G) C) and E)

Question 11

Arrange the following ionic compounds in order of increasing lattice energy (energy to break the solid into its gaseous ions) .

MgF2, SrF2, BeF2

Accepted Answer

A)   MgF2 2 2
B)   SrF2 2 2
C)   MgF2 2 2
D)   SrF2 2 2
E)   BeF2 2 2F) B) and C)
G) B) and D)

Question 12

Use the bond-type triangle for 
 2 B)  Li3P C)  Li2O D)  LiCl E)  GaAs" class="answers-bank-image d-inline" rel="preload" >
-Predict which compound is an insulating ceramic material.

Accepted Answer

A)   MgZn2
B)   Li3P
C)   Li2O
D)   LiCl
E)   GaAsF) D) and E)
G) A) and D)

Question 13

Use the bond-type triangle for 
 
-Which of the following compounds will have the most ionic character?

Accepted Answer

A)   AlSb
B)   AlN
C)   AlLi
D)   AlP
E)   AlAsF) A) and B)
G) C) and D)

Question 14

Diamond (C(s) )  is a network covalent solid. Which of the following is most likely to be true of diamond?

Accepted Answer

A)   Diamond would have a low melting point and would conduct electricity when melted.
B)   Diamond would conduct electricity as a solid and its melting point cannot be predicted.
C)   Diamond would have a high melting point and would conduct electricity when melted.
D)   Diamond would have a high melting point and wouldn't conduct electricity when melted.
E)   Diamond would have a low melting point and wouldn't conduct electricity when melted.F) C) and D)
G) C) and E)

Question 15

Which of the following structures has a coordination number of six?

Accepted Answer

A)   simple cubic
B)   body-centered cubic
C)   cubic closest packed
D)   hexagonal closest packed
E)   none of the aboveF) B) and C)
G) D) and E)

Question 16

When diamond, NaCl, and water are boiled, the bonds being broken can best be described respectively as:

Accepted Answer

A)   covalent, ionic, covalent
B)   ionic, covalent, hydrogen bonds
C)   covalent, ionic, hydrogen bonds
D)   hydrogen bonds, ionic, covalent
E)   none of the aboveF) A) and D)
G) A) and E) C

Question 17

In KF, the K+ and F- ions are almost exactly the same size: 0.134 nm. Which would be larger: a neutral potassium atom or a neutral fluorine atom?

Accepted Answer

Question 18

Diamond is an example of:

Accepted Answer

A)   a molecular solid
B)   a network covalent solid
C)   an ionic solid
D)   a solid solution
E)   a metallic solidF) A) and B)
G) C) and D)

Question 19

Use the bond-type triangle for 
 2 C)  PCl3 D)  AlCl3 E)  CaH2" class="answers-bank-image d-inline" rel="preload" >
-Predict which compound is an electrical insulator and has a relatively low melting point.

Accepted Answer

A)   NaIn
B)   SrCl2
C)   PCl3
D)   AlCl3
E)   CaH2F) B) and C)
G) A) and E)

Question 20

Which solid is held together by an extended network of covalent bonds?

Accepted Answer

A)   sodium chloride
B)   gold
C)   calcium carbonate
D)   diamond
E)   dry ice (solid CO2) F) All of the above
G) A) and B)

Exam 9: Solids

Which of the following would be the correct order from lowest melting point to highest for the following substances?

Correct AnswerverifiedShow Answer

What is the ratio of the length of the body diagonal of a cube to the face diagonal of the cube?

Correct AnswerverifiedShow Answer

Use the bond-type triangle for -Predict which compound has a high melting point and is a conductor in the molten and aqueous state.

Correct AnswerverifiedShow Answer

Cesium iodide consists of a simple cubic lattice of l- ions with Cs+ ions in the center of the cubes. If the cell edge length is 0.445 nm, what is the Cs-I interatomic distance in nanometers?

Correct AnswerverifiedShow Answer

Which of the following types of solids represents the most ordered arrangement of repeating units?

Correct AnswerverifiedShow Answer

Use the bond-type triangle for -Which of the following compounds will have the most metallic character?

Correct AnswerverifiedShow Answer

What is the approximate density in g/cm3 of titanium metal if the atomic radius of a titanium atom is 0.145 nm and the atoms form a body-centered cubic unit cell?

Correct AnswerverifiedC

A compound that is a poor conductor of electricity when solid, but a very good conductor when molten is most likely to fit into which category?

Correct AnswerverifiedC

Which of the following types of solids is most likely to be soft, have a low melting point, and not conduct electricity when melted?

Correct AnswerverifiedShow Answer

Use the bond-type triangle for -Which of the following compounds will have the most covalent character?

Correct AnswerverifiedShow Answer

Arrange the following ionic compounds in order of increasing lattice energy (energy to break the solid into its gaseous ions) . MgF2, SrF2, BeF2

Correct AnswerverifiedShow Answer

Use the bond-type triangle for -Predict which compound is an insulating ceramic material.

Correct AnswerverifiedShow Answer

Use the bond-type triangle for -Which of the following compounds will have the most ionic character?

Correct AnswerverifiedShow Answer

Diamond (C(s) ) is a network covalent solid. Which of the following is most likely to be true of diamond?

Correct AnswerverifiedShow Answer

Which of the following structures has a coordination number of six?

Correct AnswerverifiedShow Answer

When diamond, NaCl, and water are boiled, the bonds being broken can best be described respectively as:

Correct AnswerverifiedC

In KF, the K+ and F- ions are almost exactly the same size: 0.134 nm. Which would be larger: a neutral potassium atom or a neutral fluorine atom?

Correct AnswerverifiedShow Answer

Diamond is an example of:

Correct AnswerverifiedShow Answer

Use the bond-type triangle for -Predict which compound is an electrical insulator and has a relatively low melting point.

Correct AnswerverifiedShow Answer

Which solid is held together by an extended network of covalent bonds?

Correct AnswerverifiedShow Answer

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Cesium iodide consists of a simple cubic lattice of l^- ions with Cs⁺ ions in the center of the cubes. If the cell edge length is 0.445 nm, what is the Cs-I interatomic distance in nanometers?

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What is the approximate density in g/cm³ of titanium metal if the atomic radius of a titanium atom is 0.145 nm and the atoms form a body-centered cubic unit cell?

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C

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C

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Arrange the following ionic compounds in order of increasing lattice energy (energy to break the solid into its gaseous ions) . MgF₂, SrF₂, BeF₂

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C

In KF, the K⁺ and F^- ions are almost exactly the same size: 0.134 nm. Which would be larger: a neutral potassium atom or a neutral fluorine atom?

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